Why does blender crash when my missile disapears in the BGE?
This happens because the camera is parented to the missile. When the missile disappears, so does the camera. When the camera disappears, there is no longer anything sending the output to the display. This creates the problem, because blender can't update the display, and Blender crashes. You can fix this by having a scene actuator to set the camera to a different one. Then there will still be something sending output to the display. Logic setup below.